Hand tool



Patented Dec. 9, 1924.,

UNITED STATES PATENT OFFICE.

GUSTAVE O. CARLSON, OF WETHERSFIELD, CONNECTICUT, ASSIGNOR T MAYHEWSTEEL PRODUCTS, INC., OF NEW YORK, N. Y., A COREORATION OF DELAWARE.

HAND TOOL.

Application filed January 14, 1921.

To all fio/mm 'it may concern:

Be it known that I, G'UsTAvn O. CAnLsoN, a citizen of the UnitedStatics, and a resident ot lVetherslield, in the county oi" Hartford,State ot Connecticut, have invented certain new and uset'ul Improvementsin a Hand .lool, of which the following is a specil'ication.

This invention relates particularly to hand-tools of the type comprisinga pair of pivotally connected members each with a handle at one end andan active or 'fabricating portion at the other end. The invention ishere illustrated as embodied in pliers, but it is to be understood thatthe present eisclosure is illustrative only and is not to be taken asrestrictive of my invention.

The object of the present invention is to provide a hand-tool of thissort having features of novelty and advantage and which is characterizedparticularly by its simplicity of construction, economy in manufacture,and its great strength and durability.

In the accompanying drawing Fig. 1 is an elevational view ot my improvedpliers.

F ig. 2 is an edge view, vith a portion broken away, of that memberhaving the integral pivot stud, and

Fig. 3 is a sectional view taken on .line of Fig. 1.

A pair ci pliers constructed in accordance with the present inventionconsists olf two members A, li. each [Vneiterably 'lornied in one pieceby forging. Each part has a. handle portieri and an active or jawportion 11 at its opposite ends. One ot the members, in the presentinstance part A, has between its jaw and handle portions an in` tegralstud 13 which is received by a similarly positioned bearing in the othermember P), this bearing in the present instance being in the ilform ofan aperture .14. This aperture 14 is preferably countersnnk as at SerialN'o. 437,217.

15 and the outer end of the stud .l-3 is bent or headed over into thecountersink.

Preferably the stud. 13 is recessed :it its end so that during theheading or riveting operating expansion of the body portion of the studinto binding engagement with the wall of the aperture 14 is eliminated.rIhe annular lip 16, provided by recessing the stud, is of somethickness, as shown in Fig. 3, so that after this lip is headed over, itis of sntlicient strength to securely hold the parts together againstthe relatively great strains to which tools ot this sort arc-subjected.

It will be seen that a tool constructed in accordance with the presentinvention consists of two parts each of which is of very simpleconstruction. This makes it possible to forge each of these parts andconnect them together Without resorting to machining operatings Whichmaterially increase the cost of tools of this sort. Thus is provided atool which is very strong, durable and of pleasing appearance and whichi'nay be manufactured and placed on the market at a very reasonableprice.

I claim as my invention A pair of pliers comprising two forged memberseach having a handle portion and a jaw portion, one ot said membershaving a cylindrical aperture between its handle and jaw portions, saidaperture being bevelled or counterbored at one end to provide a recessol substantial area and the other o'l said members having between itshandle and jaw portions an integral stud of greater height than thelength of the aperture in said other member, said stud having a recessin its outer end to provide an annular lip, said lip being bent overinto the countersink of said aperture and being of substantialthickness, whereby it has sutlicicnt strength to withstand strains.

GUSTAVE O. CARLSON.

